“Centralna Energoremontna Baza” (CERB) was established in 1948 and today is recognized as a reliable supplier of repair services to the power facilities within the electric power sector in Bulgaria.

According to the machinery’s content and specificity, diagnostics, test and repair works are performed on the spot or at the factory of CERB.

For more than 55 years of existence the company has specialized in the following activities:

• Repair of all kinds of rotating electrical machines
• Repair of dry and oil immersed transformers and autotransformers
• Diagnostics, electrical measurements and tests of electrical machines, transformers, protective equipment and materials
• Vibration analyses and dynamic balancing of rotors, turbines, pumps and fans
• Control of metals
• Transportation of heavy and oversized loads by road and railway
• Manufacture of: spare parts and non-standard equipment for electrical machines; carbonic steel casts with weight up to 2 t; current transmitting fittings for power cables and conductors (accessories)

The Company disposes of 20 000 sq. m. built-up area including:

• production buildings
• store facilities
• oil storage reservoirs with capacity up to 380 t
• laboratories and test stations
• administrative buildings

CERB is provided with all necessary equipment and facilities such as: vacuum drying furnaces, different types of cranes with capacity up to 300 t, lines for manufacturing of new coils for high voltage motors and generators - SCHUMANN, machines for cold treatment of metals – universal lathes, milling machines, vertical boring and turning machines, vertical knee-type milling machines, radial drilling machines, slotting machines, surface-grinding machines and others. The balancing activities are carried out via apparatuses of “BRUEL&CAER” and “ENTEK IRD".

1948 CERB was founded in Sofia

1948 The electrical machines repair workshop was founded

1956 The transformers repair workshop was founded

1956 The mechanical workshop was founded

1965 The transport department was founded

1975 The center for welding and control of metals and specialized sections for vibration analysis and dynamic balancing of rotating machines and adjustment of the regulation of steam turbines was founded

1994 CERB became a joint stock company

2001 CERB was privatized

2002 Introducing of Quality Management System – EN ISO 9001-2000

2005 Introducing of Health and Safe Labour Management System – BSI-OHSAS 18001